print('Hello World')
if x > 0.0:
    print('Positiv')
elif x < 0.0:
    print('Negativ')
else:
    print('Hej')

while x % 2 == 0:
    print('hej')
    x = x/2
else:
    print (x)

#lista
primes = {1,2,3,4}

for prime in primes:
    print (prime)
else:
    print('Slut')

